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Thermo Scientific Orion Star A329 Portable pH/ISE/Conductivity/RDO/DO Meter Reference Guide
Chapter 5 ISE Calibration
ISE Calibration
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Select standards that bracket the sample concentration and are a decade apart in concentration. Prepare the ion
selective electrode according to the instructions in the electrode use guide. Connect the ISE and any other electrodes
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Note: In most calibration screens, press
f1 (esc)
to return to the measurement mode without saving the calibration.
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f1 (cal).
In dual and multi channel measurement displays, press
or
to highlight
pH/ISE – Channel
and press
f2 (select)
.
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3. When the electrode and standard are ready, press
f3 (start)
.
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a. Press
f2 (accept)
to accept the displayed value.
b. Press
f3 (edit)
to access the numeric entry screen and edit the value.
i. Press
,
,
or
to highlight a number or decimal point; press
f3 (enter)
to select
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numeric entry screen.
ii. Press
f2 (done)
to exit the numeric entry screen.
iii. Press
f2 (accept)
to accept the entered value.
1SFTT
f2 (next)
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f3 (cal done)
to save and
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a. If a one point calibration is performed, press
f2 (accept)
to accept the displayed slope value or
press
f3 (edit)
to access the numeric entry screen, enter the slope value and press
f2 (accept)
.
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log. Press
f1 (meas)
to proceed to the measurement mode or press
f2 (print)
to proceed to the measurement
mode and export the data to a printer or computer.
